The best propulsion space startups

4 propulsion companies in the directory, ranked by disclosed funding ($10.5M raised between them), spanning 4 countries.

The companies building the engines: from staged-combustion rocket motors to iodine-fueled electric thrusters the size of a shoebox. Every other category in this directory moves because of this one.

Magdrive

Metal-fueled plasma propulsion with dramatically higher thrust density

Propulsion · United Kingdom · est. 2019 · SeedMorpheus Space

Modular electric propulsion giving small satellites agile maneuverability

Propulsion · Germany · est. 2018 · Series AThrustMe

Iodine-fueled electric propulsion systems for small satellites

Propulsion · France · est. 2017Ursa Major Technologies

Engines for small satellites

Propulsion · United States · est. 2015 · Series A

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